<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>download</title>
<script src="../static/js/jquery-3.3.1.js"></script>
</head>
<body>
<div id="filename">{{ filename }}</div>
</body>
<script type="text/javascript">
window.onload = function(){
var filename = '/static/files/'+document.getElementById('filename').innerText;
window.open(filename);
}
</script>
</html>